Nope, I can't be bothered right now. I've just bought a new car so that's taking up most of my "hobby" attention. I just turn it on, listen to an album, then turn it off to cool down ready for the next one. I know that is very poor and I will do some proper fault-finding soon.

I have just got my hands on an Alpha One? I'm quite impressed with it considering it's age, especially with the size of the soundstage. Do any of you Alpha mods apply to the alpha one?

My frst problem is with the drive which will read cds if I give the disc a little spin myself, to get it started. If not it struggles, gives up and says no disc. Once it's going there are no probs with the sound. Any idea how I ight fix this?

I'll put it through my DACMAGIC eventually so I imagine it's not worth replacing the DAC, is that right?

I was going to leave the opaps to begin with to see if I could work with the character of the current ones, however I'm always open to interesting suggestions!

Finaly if anyone had the service manual I'd be very grateful if you would share it with me.

After trying several op-amps in my moded Arcam Alpha 5, running in class A, I must agree with Mr. Fikus when he said: "there is no better op-amp like no op-amp"!

Again I must agree with lampizator when he said the tube I/V output alone represents more than all mods you can do in the CD player.

Here my mods:
All digital caps changed for Os-con SPEC;
All power caps changed for Rubycon ZL;
Changed the resistors board for PRP metal film and some Takman;
LM regulators changed for best Motorola;
Diodes changed for Motorola;
Added some inductors before the power resistor of the digital chips;
NetAudio Clock;
NOS;
DEM;
Op-amps (tryed several among the best) running in class A;
SRPP 6N2P-EV tube stage for I/V output (the best!)

It might be NOS thats a problem - but the real problem is I don't know these things technically enough to make a statement - sorry.
In the end I took it ( DEM mod ) off because I too had some noise problems with it and instead I concentrated more on the power supplies which gave me really significant gains.
A little bit like SimonT's work but without so much reserve VA

Do you like the NOS sound ?
I recently did it on an Alpha 5 and removed the SAA7220 completely. There are certainly gains in sound quality in the bottom end and midrange but I'm still not sure about the hf roll off. I'm sure I can hear it.